Cached CORS Content Loaded By JS Fails

[kheina]

content loaded from off-site sources (requiring CORS) and retrieved from cache by javascript automatically fails.
image is loaded from a cdn via an xhr request from javascript

image url: https://cdn.fuzz.ly/eY2stn74/40994bf2-861b-45ac-97e4-0b1693531c85.jpg

cache disabled via console:

however, this does not occur with all images. same website, same page, different image: https://cdn.fuzz.ly/FRnlWSAP/Snep-redraw-2023-01-31-transparent.png

this image loads from cache just fine

~ % opera --version
98.0.4759.6
~ % neofetch
                   -`                    dani@desktop 
                  .o+`                   ------------ 
                 `ooo/                   OS: Arch Linux x86_64 
                `+oooo:                  Host: MS-7C37 2.0 
               `+oooooo:                 Kernel: 6.2.12-arch1-1 
(...)

if necessary, I could probably make a sample html/js file to trigger this issue, if the cause is what I think it is